How to check the exit status using an if statement

Question

I was wondering what would be the best way to check the exit status in an if statement in order to echo a specific output.

I\'m thinking of it being

Answer 1

Alternative to explicit if statement

Minimally:

test $? -eq 0 || echo "something bad happened"

Complete:

EXITCODE=$?
test $EXITCODE -eq 0 && echo "something good happened" || echo "something bad happened"; 
exit $EXITCODE